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Smallest k for which k, 2k, ... nk all contain the digit 8.
9

%I #8 Apr 27 2017 19:24:55

%S 8,84,284,2842,8937,8964,8964,85964,89641,89641,89641,89729,296984,

%T 429817,897299,897299,897299,897299,897299,897299,897299,897299,

%U 897299,8697299,9897947,9929817,9929817,9929817,9929817,9929817,9929817

%N Smallest k for which k, 2k, ... nk all contain the digit 8.

%H Giovanni Resta, <a href="/A039939/b039939.txt">Table of n, a(n) for n = 1..262</a>

%e a(2)=84 since 84 and 168 contain a 8.

%Y Cf. A039932, A039933, A039934, A039935, A039936, A039937, A039938, A039940.

%K base,nonn

%O 1,1

%A _Erich Friedman_

%E More terms from _Patrick De Geest_, Oct 15 1999